Blender Git Loki

VSE: open file browser sidebar by default when adding external strips

Open the file browser sidebar by default when adding Movie/Sound/Image Sequence Strips, to show the operator options.

Differential Revision: https://developer.blender.org/D6212

Reviewed by: William Reynish, Julian Eisel

VSE: open file browser sidebar by default when adding external strips

Open the file browser sidebar by default when adding Movie/Sound/Image Sequence Strips, to show the operator options.

Merge branch 'master' into temp-graph-select-changes

Fix T71474: Temporary image editor cancels to file editor after file operation

GPencil: Cleanup variable type

BLI_task: Initial implementation of pooled threaded index range iterator.

This code allows to push a set of different operations all based on
iterations over a range of indices, and then process them all at once
over multiple threads.

This is mainly interesting for relatively low amount of individual
tasks, as expected.

E.g. performance tests on a 32 threads machine, for a set of 10
different tasks, shows following improvements when using pooled version
instead of ten sequential calls to `BLI_task_parallel_range()`:

| Num Items | Sequential | Pooled | Speed-up |
| --------- | ---------- | ------- | -------- |
| 10K | 365 us | 138 us | 2.5 x |
| 100K | 877 us | 530 us | 1.66 x |
| 1000K | 5521 us | 4625 us | 1.25 x |

Differential Revision: https://developer.blender.org/D6189

GPencil: Check grid cell index range

It could get wrong values in corner case situations.

Merge branch 'master' into greasepencil-object

GPencil: Redesign Vetex Paint Smear Tool

Now instead to rorate the grid, the point is extracted using the direction and not the cell above in a rotated grid. This simplifies the process and gets better results.

Merge branch 'blender-v2.81-release'

Merge branch 'blender-v2.81-release'

Fix lattice deform after undo and edit-mode exit

Follow up on T71414

Revert "Fix T71126: add old hotkeys to set start/end frame in the timeline to"

This caused T71483.
Having timeline and dopesheet merged in 2.8 makes using S/E keys in timeline not work well.
2.7x keymap needs to fit with 2.8x internals, so probably 2.7x keymap will have to live with Ctrl+Home / Ctrl+End here.

This reverts commit 4fbcbbfb967cb0fdff11dfc1646a1c55bca96f1d.

Merge branch 'blender-v2.81-release'

Fix T71414: Undoing change of lattice resolution deforms mesh

Windows: Fix build errors during deps build on windows.

GPencil: First steps for the new Smear tool

Note: Still not working.

Merge branch 'master' into greasepencil-object

Cleanup: Port screenVecs, pixelSize (pixelFac) and sizeViewport to UBO

Overlay Engine: Volume Velocity